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  #   ˆl–ßi~”TÒ~êu@ŠãM\*bÑ¿Ç„ Ë¿ÁÉ '5    # -*- Mode: Python; py-indent-offset: 4 -*-
# vim: tabstop=4 shiftwidth=4 expandtab
#
# Copyright (C) 2007-2009 Johan Dahlin <johan@gnome.org>
#
#   module.py: dynamic module for introspected libraries.
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301
# USA

from __future__ import absolute_import

import sys
import importlib

_have_py3 = (sys.version_info[0] >= 3)

try:
    maketrans = ''.maketrans
except AttributeError:
    # fallback for Python 2
    from string import maketrans

import gi

from ._gi import \
    Repository, \
    FunctionInfo, \
    RegisteredTypeInfo, \
    EnumInfo, \
    ObjectInfo, \
    InterfaceInfo, \
    ConstantInfo, \
    StructInfo, \
    UnionInfo, \
    CallbackInfo, \
    Struct, \
    Boxed, \
    CCallback, \
    enum_add, \
    enum_register_new_gtype_and_add, \
    flags_add, \
    flags_register_new_gtype_and_add, \
    _gobject
from .types import \
    GObjectMeta, \
    StructMeta

GInterface = _gobject.GInterface

from ._constants import \
    TYPE_NONE, \
    TYPE_BOXED, \
    TYPE_POINTER, \
    TYPE_ENUM, \
    TYPE_FLAGS


repository = Repository.get_default()

# Cache of IntrospectionModules that have been loaded.
_introspection_modules = {}


def get_parent_for_object(object_info):
    parent_object_info = object_info.get_parent()

    if not parent_object_info:
        # If we reach the end of the introspection info class hierarchy, look
        # for an existing wrapper on the GType and use it as a base for the
        # new introspection wrapper. This allows static C wrappers already
        # registered with the GType to be used as the introspection base
        # (_gobject.GObject for example)
        gtype = object_info.get_g_type()
        if gtype and gtype.pytype:
            return gtype.pytype

        # Otherwise use builtins.object as the base
        return object

    namespace = parent_object_info.get_namespace()
    name = parent_object_info.get_name()

    module = importlib.import_module('gi.repository.' + namespace)
    return getattr(module, name)


def get_interfaces_for_object(object_info):
    interfaces = []
    for interface_info in object_info.get_interfaces():
        namespace = interface_info.get_namespace()
        name = interface_info.get_name()

        module = importlib.import_module('gi.repository.' + namespace)
        interfaces.append(getattr(module, name))
    return interfaces


class IntrospectionModule(object):
    """An object which wraps an introspection typelib.

    This wrapping creates a python module like representation of the typelib
    using gi repository as a foundation. Accessing attributes of the module
    will dynamically pull them in and create wrappers for the members.
    These members are then cached on this introspection module.
    """
    def __init__(self, namespace, version=None):
        """Might raise gi._gi.RepositoryError"""

        repository.require(namespace, version)
        self._namespace = namespace
        self._version = version
        self.__name__ = 'gi.repository.' + namespace

        self.__path__ = repository.get_typelib_path(self._namespace)
        if _have_py3:
            # get_typelib_path() delivers bytes, not a string
            self.__path__ = self.__path__.decode('UTF-8')

        if self._version is None: